<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
    <script src="../vue.js"></script>
</head>
<body>
<div id="app">
    <component-a></component-a>
    <component-b></component-b>
</div>
    
<script>
    // 注册组件
    var componentA = Vue.component("a-tag", {
        template: '<div><h1>Hi</h1></div>',
    })
    var componentB = Vue.component("b-tag", {
        template: '<div><h1>Rollingball</h1></div>',
    })

    // 实例化Vue
    var app = new Vue({
        el: "#app",
        data: {},
        components: {
            'component-a': componentA,
            'component-b': componentB
        }
    })
</script>
</body>
</html>